St. John’s Wort is a herbal supplement that has been used for centuries in traditional medicine to treat a variety of ailments, including depression, anxiety, and sleep disorders. Recent studies suggest that it may be as effective as prescription antidepressants for mild to moderate depression. St. John’s Wort works by increasing the levels of serotonin and noradrenaline in the brain, which are important for regulating mood. It may also be useful for menopausal symptoms, ADHD, somatic symptom disorder, and obsessive-compulsive disorder. St. John’s Wort can be taken orally or applied topically for wound healing, bruises, and muscle pain. It is important to speak with a healthcare provider before taking St. John’s Wort to avoid potential adverse effects as it can interact with certain medications.